Mohammed, Saif, and Usama Altay. “Pecial Exercises Using Assisting Apparatuses On The Development Of Some Biomechanical Variables Of Leaping In Triple Jump”. Journal of Physical Education 29, no. 2 (May 2, 2019): 48–67. Accessed May 6, 2024. https://jcope.uobaghdad.edu.iq/index.php/jcope/article/view/123.